Jennifer Aniston and Chris McMillan
You know how you like to play dress-up with your best friends and do each other's makeup and hair? Well, these celebrities and their professional glam squads are tight just like that. These men and women travel the world doing makeup and hair for the stars (who also happen to be their biggest fans). You may never see them walk the red carpet, but these behind-the-scenes beauty rock stars are known for their work. From Jennifer Aniston to Jessica Alba, meet the BFFs of the celebrity beauty world.